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The difference in painting a cuboid box with paint worth 5.50 per sq inch and 5 per sq inch is 188. If the dimensions of the box are in the ratio 3 : 4 : 5, find the volume of the box in cubic inches.
option
a) 360
b) 480
c) 240
d) 516

Read Solution (Total 4)

TCS Other Question

A thread is marked into three parts whose lengths are in the ratio 2:5:6. Two types of knots A and B reduce the length of the thread by different lengths. On the first part, 6 knots of type A are made, on the second part 10 knots of type B are made and on the third part, 5 knots of type A and 5 knots of type B are made. After this, the lengths of the three parts taken in the same order, are in the ratio of 1 : 7 : 8. What is the ratio of the reduction in length due to knot A to that of knot B?
a) 3 : 5
b) 4 : 5
c) 5 : 4
d) 5 : 3
If the equation (k^2 - 5k + 6)x^2 + (k^2 - 7k + 12)x + k^2 - 9 = 0 satisfy more than two values of x, then the value of k is
option
a) -3
b) 3
c) 2
d) 4